/**
 * 卡片面板
 * 
 * @Author: Shann
 * @LastEditors: Shann
 * @Date: 2021-07-26 08:53:33
 * @LastEditTime: 2021-08-03 15:11:00
 * @Copyright: Copyright 2021-2021, all rights reserved. Essa.cn
 */
class Card {
    props = {
        title: String,
        extra: String,
    };

    state = {
        extra: this.props.extra,
    };
}
